基于扩张状态观测器的永磁同步电机自适应逆控制  

Permanent magnet synchronous motor adaptive inverse control based on extended state observer

作　　者：张嘉洋 巨永锋[1] 刘永臣 杜凯[1] ZHANG Jiayang;JU Yongfeng;LIU Yongchen;DU Kai(School of Electronic and Control Engineering,Chang’an University,Xi’an 710064,China)

机构地区：[1]长安大学电子与控制工程学院,陕西西安710064

出　　处：《现代电子技术》2021年第21期96-100,共5页Modern Electronics Technique

基　　金：陕西省自然科学基础研究计划项目(2020JM-255,2020JM-238)。

摘　　要：针对传统矢量控制策略在保持系统动态性能的基础上无法消除系统扰动的问题,同时为了进一步提高系统模型的控制精度及抗扰能力,提出一种基于扩张状态观测器的永磁同步电机自适应逆控制方法。首先,该方法以双闭环矢量控制结构为基础,在转速环部分采用自适应逆控制方法,通过非线性滤波器以及归一化LMS算法对转速进行实时估计,并利用估计的权值对电机系统进行在线逆建模;其次,在此控制系统的基础上加入扩张状态观测器,对输出信号进行跟踪的同时对系统的内外扰动总和加以补偿以增强系统的抗扰能力;最后,利用Simulink对该系统进行仿真验证。实验结果表明,该控制方法具有更好的动态性能和抗扰能力。In order to solve the problem that the traditional vector control fails to eliminate the system disturbances while maintaining the dynamic performance of the system,and further to improve the control accuracy and anti-interference of the model,a permanent magnet synchronous motor(PMSM)adaptive inverse control method based on the extended state observer(ESO)is proposed.This method is based on double closed-loop vector control structure.An adaptive inverse control method is adopted for the rotation-loop.A nonlinear filter and a normalized LMS algorithm are used to estimate the rotate speed in real time.The estimated weight is used to evaluate the motor system to perform online inverse modeling.An ESO is added to the control system to compensate for the sum of internal and external disturbances of the system while tracking the output signals to enhance the anti-disturbance capability of the system.Finally,the Simulink is used to simulate and verify the system.The simulation results show that the control strategy has better dynamic performance and robustness.

关 键 词：永磁同步电机 自适应逆控制 扩张状态观测器 非线性滤波器 LMS算法 控制精度 

分 类 号：TN876-34[电子电信—信息与通信工程]